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RPI RP 2040 support#144
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9ee3929 extra: add bin2uf2 tool
pennam16ca6b6 extra: copy uf2 files to firmware folder
pennamd55e832 platform: allow using picotool to burn (boot)loader
pennam8e63528 variant: add rpi_pico_rp2040
pennam7063460 platform: rpi rp2040 fix llext undefined symbol __gnu_thumb1_case_uqi
pennamadf920a rp2040: enable usb device and usb serial console
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64 changes: 64 additions & 0 deletionsboards.txt
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1 change: 1 addition & 0 deletionsextra/bin2uf2/.gitignore
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| bin2uf2 |
3 changes: 3 additions & 0 deletionsextra/bin2uf2/go.mod
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| module github.com/pennam/bin2uf2 | ||
| go 1.21 |
181 changes: 181 additions & 0 deletionsextra/bin2uf2/main.go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| package main | ||
| import ( | ||
| "encoding/binary" | ||
| "flag" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
| "strconv" | ||
| "strings" | ||
| "unsafe" | ||
| ) | ||
| // UF2 block constants with fixed-size types. | ||
| const ( | ||
| magic1 uint32 = 0x0A324655 | ||
| magic2 uint32 = 0x9E5D5157 | ||
| magic3 uint32 = 0x0AB16F30 | ||
| flags uint32 = 0x00002000 // familyID present | ||
| payloadSize uint32 = 256 | ||
| blockSize uint32 = 512 | ||
| dataSectionSize uint32 = 476 | ||
| ) | ||
| // UF2Block defines the structure of a UF2 block, used as a data container. | ||
| // The Payload array is sized to hold the entire data section, so the unused | ||
| // portion of the array acts as our padding. | ||
| type UF2Block struct { | ||
| Magic1 uint32 | ||
| Magic2 uint32 | ||
| Flags uint32 | ||
| TargetAddr uint32 | ||
| PayloadSize uint32 | ||
| BlockNo uint32 | ||
| NumBlocks uint32 | ||
| FamilyID uint32 | ||
| Payload [dataSectionSize]byte | ||
| Magic3 uint32 | ||
| } | ||
| // Calculate the offset of the NumBlocks field within the block struct. | ||
| const numBlocksOffset = unsafe.Offsetof(UF2Block{}.NumBlocks) | ||
| func main() { | ||
| // Define optional string flags for address and family ID | ||
| addrStr := flag.String("addr", "0x100E0000", "The starting memory address in hexadecimal format.") | ||
| familyIDStr := flag.String("familyID", "0xe48bff56", "The family ID of the target device in hexadecimal format.") | ||
| // Customize the default usage message to be more explicit. | ||
| flag.Usage = func() { | ||
| fmt.Fprintf(os.Stderr, "Usage: %s [options] <source file> <destination file>\n", os.Args[0]) | ||
| fmt.Fprintln(os.Stderr, "Converts a binary file to the UF2 format.") | ||
| fmt.Fprintln(os.Stderr, "\nOptions:") | ||
| flag.PrintDefaults() | ||
| } | ||
| flag.Parse() | ||
| // Check for the correct number of positional arguments. | ||
| if len(flag.Args()) != 2 { | ||
| flag.Usage() | ||
| os.Exit(1) | ||
| } | ||
| // Parse the address string from the flag. | ||
| parsedAddr, err := strconv.ParseUint(strings.TrimPrefix(*addrStr, "0x"), 16, 32) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Invalid address format: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| address := uint32(parsedAddr) | ||
| // Parse the familyID string from the flag. | ||
| parsedFamilyID, err := strconv.ParseUint(strings.TrimPrefix(*familyIDStr, "0x"), 16, 32) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Invalid familyID format: %v\n", err) | ||
| os.Exit(1) | ||
| } | ||
| familyID := uint32(parsedFamilyID) | ||
| srcPath := flag.Arg(0) | ||
| dstPath := flag.Arg(1) | ||
| // Open source file | ||
| src, err := os.Open(srcPath) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Could not open source file %s: %v\n", srcPath, err) | ||
| os.Exit(1) | ||
| } | ||
| defer src.Close() | ||
| // Create destination file | ||
| dst, err := os.Create(dstPath) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Could not create destination file %s: %v\n", dstPath, err) | ||
| os.Exit(1) | ||
| } | ||
| defer dst.Close() | ||
| var blockNum uint32 | ||
| var totalBlocks uint32 | ||
| // This slice is a temporary buffer for reading one payload-worth of data. | ||
| readBuffer := make([]byte, payloadSize) | ||
| // Main loop to read source and write UF2 blocks | ||
| for { | ||
| bytesRead, err := io.ReadFull(src, readBuffer) | ||
| if err == io.EOF { | ||
| break | ||
| } | ||
| if err != nil && err != io.ErrUnexpectedEOF { | ||
| fmt.Fprintf(os.Stderr, "Error: Failed reading from source file %s: %v\n", srcPath, err) | ||
| os.Exit(1) | ||
| } | ||
| // Create the block struct and populate its fields. | ||
| block := UF2Block{ | ||
| Magic1: magic1, | ||
| Magic2: magic2, | ||
| Flags: flags, | ||
| TargetAddr: address, | ||
| PayloadSize: payloadSize, | ||
| BlockNo: blockNum, | ||
| NumBlocks: 0, // Placeholder, will be updated later. | ||
| FamilyID: familyID, | ||
| Magic3: magic3, | ||
| } | ||
| // Copy the data from our read buffer into the beginning of the | ||
| // larger Payload array. The rest of the array remains zero, acting as padding. | ||
| copy(block.Payload[:], readBuffer) | ||
| // --- Write the block to disk piece-by-piece --- | ||
| // 1. Write the header fields | ||
| binary.Write(dst, binary.LittleEndian, block.Magic1) | ||
| binary.Write(dst, binary.LittleEndian, block.Magic2) | ||
| binary.Write(dst, binary.LittleEndian, block.Flags) | ||
| binary.Write(dst, binary.LittleEndian, block.TargetAddr) | ||
| binary.Write(dst, binary.LittleEndian, block.PayloadSize) | ||
| binary.Write(dst, binary.LittleEndian, block.BlockNo) | ||
| binary.Write(dst, binary.LittleEndian, block.NumBlocks) | ||
| binary.Write(dst, binary.LittleEndian, block.FamilyID) | ||
| // 2. Write the entire 476-byte data section (payload + padding) in one go. | ||
| if _, err := dst.Write(block.Payload[:]); err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Failed writing data section to %s: %v\n", dstPath, err) | ||
| os.Exit(1) | ||
| } | ||
| // 3. Write the final magic number | ||
| if err := binary.Write(dst, binary.LittleEndian, block.Magic3); err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Failed writing final magic to %s: %v\n", dstPath, err) | ||
| os.Exit(1) | ||
| } | ||
| address += payloadSize | ||
| blockNum++ | ||
| if err == io.EOF || bytesRead < int(payloadSize) { | ||
| break | ||
| } | ||
| } | ||
| totalBlocks = blockNum | ||
| // After writing all blocks, seek back and update the totalBlocks field in each header | ||
| for i := uint32(0); i < totalBlocks; i++ { | ||
| // Calculate the offset using our safe constant instead of a magic number. | ||
| offset := int64(i)*int64(blockSize) + int64(numBlocksOffset) | ||
| _, err := dst.Seek(offset, io.SeekStart) | ||
| if err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Failed seeking in destination file %s: %v\n", dstPath, err) | ||
| os.Exit(1) | ||
| } | ||
| if err := binary.Write(dst, binary.LittleEndian, totalBlocks); err != nil { | ||
| fmt.Fprintf(os.Stderr, "Error: Failed updating total blocks in %s: %v\n", dstPath, err) | ||
| os.Exit(1) | ||
| } | ||
| } | ||
| fmt.Printf("Successfully converted %s to %s (%d blocks written).\n", srcPath, dstPath, totalBlocks) | ||
| } |
2 changes: 1 addition & 1 deletionextra/build.sh
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12 changes: 10 additions & 2 deletionsplatform.txt
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10 changes: 10 additions & 0 deletionsvariants/rpi_pico_rp2040/rpi_pico_rp2040.conf
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| CONFIG_USB_DEVICE_STACK=y | ||
| CONFIG_USB_DEVICE_PRODUCT="Raspberry Pi Pico" | ||
| CONFIG_USB_DEVICE_MANUFACTURER="Raspberry Pi" | ||
| CONFIG_USB_DEVICE_VID=0x2E8A | ||
| CONFIG_USB_DEVICE_PID=0x00C0 | ||
| CONFIG_SERIAL=y | ||
| CONFIG_CONSOLE=y | ||
| CONFIG_UART_CONSOLE=y | ||
| CONFIG_UART_LINE_CTRL=y |
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